Table 1

Number of organisms with susceptibility test results each year over the 12-year study period

Organism	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013
Gram-positive
Streptococcus pneumoniae	55	52	86	59	89	148	121	107	124	97	137	129
Viridans group Streptococci	5	14	18	21	18	9	18	23	24	15	22	25
MRSA	–	–	–	0	0	0	1	4	2	5	5	3
Methicillin-sensitive S. aureus	9	11	10	5	16	8	21	23	18	19	22	15
Coagulase-negative Staphylococci	7	10	14	20	15	4	7	8	10	13	24	19
Nocardia species	9	12	12	12	13	29	32	24	21	22	35	25
Diphtheroids	8	17	16	18	34	22	23	20	17	23	16	21
Gram-negative
Pseudomonas aeruginosa	52	50	58	74	82	84	107	66	97	80	73	71
Enterobacteriaceae	10	7	9	3	9	6	6	12	13	12	13	10

Testing for methicillin-resistant Staphylococcus aureus (MRSA) started in 2005.